Area illumination for LED night light

ABSTRACT

The area illumination for a LED night light to apply a simple very roughly surface light-medium has the input-end to receive the said LED light beams to travel within the said light-medium and majority of the light beams can be seen on the all surface of the said light-medium. The spot LED light source with narrow viewing angel to change to the certain surface&#39;s area illumination by apply the current invention very roughly surface light-medium with optionally add the frosted sheet on the visible surface of said light medium incorporate with the sealed-unit safety concept will be the big improvement for the safety and light illumination appearance to people.

This application is continuation of

-   1. U.S. patent application Ser. No. 10/954,189

“An electro-luminescent (EL) illuminated wall plate device with push-tighten frame means” filed Oct. 1, 2004; and

-   2. U.S. patent application Ser. No. 11/094,155

“Multiple function wall cover plate” filed on the Mar. 31, 2005; and

-   3. U.S. patent application Ser. No. 11/094,156

“Multiple functions night light” filed on the Mar. 31, 2005; and

-   4. U.S. patent application Ser. No. 10/667,787

“Multiple lit-area(s) of Electro-Luminescent element(s) arrangement”; and

-   5. U.S. patent application Ser. No. 10/286,871

“A tubular Electro-Luminescent light device”; and

-   6. U.S. patent application Ser. No. 10/621,513

“environment proof treatment for Electro-Luminescent(EL) element(s) ; and

-   7. U.S. patent application Ser. No. 11/094,215

“LED night light with liquid arrangement” filed on Mar. 31, 2005 and

-   8. U.S. patent application Ser. No. 11/255,981

“Night light with 2 light source” filed on Oct. 24, 2005.

-   9. U.S. patent application Ser. No.

“Time piece with LED light means, File on Jul. xx, 2006

-   10. U.S. patent application Ser. No.

“LED light device with Air Fresher”, File on Jul. xx, 2006

BACKGROUND

The current invention to use the most simple light-medium with very roughly surface to make the sport light means such as LED to become the wide spread out light beams for a certain surface with area illumination. To make the narrow viewing angel of the spot light beams to become a surface with area illumination already adapted for decades especially for the cellar phone, computer, PDA screen. However, all these technical apply the very expensive optics member which is clear plastic lens and one side of the surface with a lot of the raised points and these points mainly are reflect the incoming light beams to variety directions. The plurality of the raised spots arranged on the one side of the clear lens to make a plurality of false tiny light spots inside the lens. Further apply the reflective material on the 4 other sides to block out the light been leakage from these 4 sides. The front visible surface need to add a milky optics member to make the plurality of false light spots become diffusion to make the even surface light for area illumination. These prior art only get the area illumination on one of the 6 surface not like the current invention is all surface of the light-medium with visible area light so it will be more wide application by the current invention.

For example the U.S. prior art U.S. Pat. No. 6,987,710 same inventor as U.S. Pat. No. 7,054,233 both prior art teach the illumination module back surface has the reflective properties to allow the light beam reflect in the interior of the module and out from the front surface (Abstract line 7 to line 9, and the details description stating The back side of reflectors 38, 48 or 78 could alternatively be engraved to provide multiple raised surfaces, such as points, bumps, protuberances, or the like. FIGS. 14 and 15 illustrate surfaces 86 and 87, respectively, created by dot engraving techniques). The said illumination module is very expensive to make this compare with current invention. The current invention light-medium which just have the very rough surface surround the medium and make all the light beams travel within the said light-medium. This rough-surface treatment has more diffusion effects than the said prior arts reflective optics property. Further more, the prior art want to control the light beams only “out of the front surface” this is mission impossible and can not control at all. The current invention do allow the light emit out to all directions to all surface though the rough-surface of the light-medium to viewer. Some directions light beams will be block out by the housing so can get desired light effect as wish. The both Kibiloski prior art did not teach a frosted front sheet to make the illumination module to get the best photometric and make the cosmetic appearance for the visible surface so it is impossible to make a commercial items without this frosted front sheet on top of the illumination module.

The LED are positioned with light-medium's input-end to make majority of light beams travel within the said light-medium and to be seen the brightness on light-medium's surface basing the very roughly surface of the light-medium to block out all the light beams to be emit out of said the surface of the light-medium. This is not same as other optics design which have shinny surface and with a lot of raised spots on lower surface to make the single LED light spot become a plurality of tiny light spots with front frosted-lens to make it become even photometric. The other optics design from conventional market adapted very expensive shinny surface optics parts, the current invention use a roughly light-medium can get better and more even photometric under much low cost for this light-medium. This is big improvement than the other optics design.

The other features of the current invention to disclosure the LED circuit within a sealed-unit for very important to improve the LED night light safety.

The sealed-unit case material is preferable to use the plastic with certain thickness to pass the 94-V-0 flammable grade to meet the safety standard and all other housing part without any limitation because without touching the live wires.

The base can be any shape, configuration, design, curvature, thickness, material, dimension with build-in or separated receptacle means. The sealed-unit has LED related circuit, control means, prong means disposed within, this can design for super slim and wider unit or thicker for small unit which depend on the market requirement. For convenience, It also can make a desired unit which can fit into different base shape such as Rectangular shape for area illumination for LED night light application is the best design.

DRAWING

FIG. 1: Disclosure the 1^(st) embodiment for area illumination for LED night light for detail construction to apply the light-medium to let LED light beams to travel within the said light-medium and can see the very evenly light brightness from light-medium surface.

FIG. S: Disclosure the preferable 2^(nd) embodiment for said sealed-unit which seal all the LED related circuit, prong means, control means within the very safety case to prevent from people t touch the any electric components which have any connection with live wires which have high voltage at certain frequency. It also disclosure the sealed-unit with LEDs construction to fix on the light device with details description so this is universal model can fit to all kind of night light device.

DETAIL DESCRIPTION

From FIG. S, disclosure the sealed-unit (S2) (S12) (S22) with pre-designed opening (S2′) (S12′) (S22′) to allow the universal type of the sealed-unit (S2) (S12) (S22) can fit into the opening (S2′) (S12′) (S22′) which can use the conventional market method to fasten with the base (S1) (S10) (S20) which may assemble with the said night light by screw (S23) (S24), welding, sonic sealing, glue, solvent, rivet, catcher, or equivalent fix-means skill from the convention market to allow the sealed-unit be fix on position. The sealed-unit (S2) (S12) (S22) preferable to use the plastic with certain thickness to pass the 94-V-0 flammable grade to meet the safety standard and all other housing part (S1) (S10) (S20) without any limitation because without touching the live wires. The base (S1) (S10) (S20) can be any shape, configuration, design, curvature, thickness, material, dimension with build-in or separated receptacle means. The sealed-unit has LED related circuit, control means, prong means disposed within, this can design for super slim and wider unit or thicker for small unit which depend on the market requirement. For convenience, It also can make a desired unit which can fit into different base shape such as boat shape (S1), tube shape (S10), Rectangular shape (S20) for different night light application.

The Boat Base (S1) has opening (S2′) to allow the sealed-unit (S2) can fit into the space. The sealed-unit (S2) has the LED related circuit (S8) and its components (S9) and prong means (S7) (S7′) are sealed within the case (S2). The top of the case have two LEDs (S3) (S4) which are connected with the inner circuit (S8) but all the LEDs' electric legs can not be touched by test equipment to make sure the kid finger will not touch these live wires to cause dangerous condition. The LED (S5) can be use the conductive wires (S6) to pull to far away the unit's housing (S2) for other illumination arrangement.

The LEDs (S3) (S4) also fit into the base opening (S3′) (S4′) and a wall (S2″) will cover the LEDs after the assembly with base housing. After the assembly, The LED light beams can be passing though the base's opening area (S) to make the good light effects to the upper display unit.

From the tube base (S10) has the opening (S12′) to allow the sealed-unit (S12) to fit into with two or more LED on desired position and orientation and wiring arrangement so can allow the light beams emit out from the base top opening (S18) and lower window (S18′) for desired illumination.

From the Rectangular base (S20), It is special for the Surface light arrangement. The LED spot light beams though a light-medium (S28) to allow the LED light beam to travel within the light-medium (S28) and majority of light beam to be seen by viewer from light-medium (S28) surface. It will not see any hot spot of LED light brightness but see a very soft and even photometric area light for special illumination. From the Rectangular base (S20) has opening (S22′) to allow the sealed-unit (S22) can be fit into tightly with glue or solvent of other adhesive means, sonic means, welding means, catcher means, or hook means to assembly with rectangular house (S20). The LED will fit into the light-medium's thickness to get the best result.

From FIG. 1, The LED night light consists of back housing (1) and front housing (7) with opening (15) (15′) on back housing (1) to install the prong means (2′) (2). The two isolating means (3′) (3) may optionally add top of the prong means to prevent any electric shortage under unexpected condition. The LED related circuit (not shown) and control means (not shown) and LED(s) (8) are arranged on the printing circuit board (hereafter as PCB) (4) which between the front housing (7) and back housing (1). The LED (8) are positioned with light-medium's input-end (8′) to make majority of light beams travel within the said light-medium and to be seen the brightness on light-medium's surface basing the very roughly surface of the light-medium to block out all the light beams to be emit out of said the surface of the light-medium. This is not same as other optics design which have shinny surface and with a lot of raised spots on lower surface to make the single LED light spot become a plurality of tiny light spots with front frosted-lens to make it become even photometric. The other optics design from conventional market adapted very expensive shinny surface optics parts, the current invention use a roughly light-medium can get better and more even photometric under much low cost for this light-medium. This is big improvement than the other optics design.

The frosted sheet (6) is optionally to add on the visible surface (5′) of the light-medium to make the cosmetic appearance to people because the light-medium visible surface is very roughly. The other surface (5″) no need to add such sheet but may apply the white painting to block the any parts underneath the said light-medium to prevent people see the underneath components.

The frosted sheet (6) are top of the visible surface of light-medium which are located within the walls (12) on the back of housing (1) with several rein-forced post (11) (11′) (11″) to prevent the wall broken while use assembly means to tighten the front housing (7) and back housing (1). The PCB (4) and isolating means and prong means are hold on the post (14) (14′) while the PCB holes (14 a) (14 a′) position to the post (14) (14′). It can use screw, melting plastic pole, sonic sealing, press tight, glue, adhesive to make the PCB (4) tightly to assembly with back housing (1). The assembly means for front housing (7) to the back housing (1) may apply the available skill from market place to make the tight join together. The window (7′) of the front housing is the area illumination location of said the night light. The current invention adapted the very roughly surface light-medium with its LED input-end arrangement to allow the bright spot light means such as LED can have the very even photometric on each point of said the light-medium surface to created the AREA ILLUMINATION to be seen by viewer.

It is appreciated that all the above discussed description, embodiment, prior art, co-inventor's disclosure is not limited to these discussion. Any of the equivalent function, replacement, alternative process, treatments, experiments, and arrangements still belong and within the scope of the current invention. 

1. The Area illumination for a LED night light consist of; At least one of the light-medium has very rough surface to allow LED light beams to travel within and majority of light beams can be seen on the said light-medium surface by viewer. At least one of the housing which has at least of one prong means to connect with the power source and one location of the said housing with area illumination. At least one of LED connect with related circuit, control means, and prong means disposed within the said housing to make the said LED to be turn on under predetermined functions and period of time. The improvement including: The said light-medium very rough surface to make the LED light means point light beams to be spread out to whole surface of the said light-medium to be seen by viewer. A frosted front sheet optionally adds on the location adjacent to the light-medium visible surface to make perfect photometric and cosmetic appearance of the visible surface.
 2. The Area illumination for a LED night light consist of; At least one of the light-medium has very rough surface to allow LED light beams to travel within and majority of light beams can be seen on the said light-medium surface by viewer. At least one of the housing which has a sealed-unit and its prong means to connect with power source and one location of the said housing with area illumination. At least one of LED connect with related circuit, control means, and prong means sealed within the sealed-unit case to make the said LED to be turn on under predetermined functions and period of time. The improvement including: The said light-medium very rough surface to make the LED light means point light beams to be spread out to whole surface of the said light-medium to be seen by viewer. A frosted front sheet optionally adds on the location adjacent to the light-medium visible surface to make perfect photometric and cosmetic appearance of the visible surface.
 3. A sealed-unit for LED light device consist of: At least one of housing to allow the prong means, LED related circuit, control means sealed into a safety standard plastic material which meet the safety standard's certain flammable grade under some supplier and wall thickness. At least one of the LED(s) to connect with the said LED related circuit and prong means to get the power and functions under predetermined features for illumination. The said LED may dispose of the said sealed-unit, connected by conductive wire, or install on the surface of sealed-unit without see the electric metal legs. The said prong means can be fix on the location or swivel type. The sealed-unit can be assembly with the said light device by conventional available skill of the art to make a final product. 